/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package frontend;

import hibernate.impl.RoleDAOImpl;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import util.DataAccessLayerException;
import util.PentaUtil;
import validator.ValidatorError;

/**
 *
 * @author Valentina
 */
public class RoleDeleteServlet extends HttpServlet {

    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {

        Long roleId = Long.parseLong(request.getParameter("id"));
        List myErrors = new ArrayList();

        try {
            RoleDAOImpl roleDAOImpl = new RoleDAOImpl();
            roleDAOImpl.delete(roleId);
            PentaUtil.RequestUtil(request, response, "RoleServlet");

        }catch (NumberFormatException nfe) {
            myErrors.add(new ValidatorError("numberFormatError", "Number Format Error"));
            PentaUtil.setError(request, response, myErrors);
        }catch (DataAccessLayerException dae){
            myErrors.add(new ValidatorError("dataBaseError", "DataBase Error"));
            PentaUtil.RequestUtil(request, response, "WEB-INF/frontend/PageError.jsp");
        } catch (Exception e) {
            myErrors.add(new ValidatorError("systemError", "System Error"));
            PentaUtil.setError(request, response, myErrors);
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}